Exponential distribution with a mean
Suppose the lifetime of a particular appliance follows an exponential distribution with a mean of 10 years. What is the probability that the appliance will fail in less than 5 years?
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If 500 kJ of heat are removed from the cylinder after the expansion to bring the pressure back down to one atmosphere, what is the efficiency of this cycle?
The data in the table below indicate total cholesterol level for each participant before and after taking the herb. Is there a significant difference in total cholesterol after taking the herb? Use the Sign test with a 5% level of significance.
A fan drawing electricity at a rate of 1.5 kW is located within a well insulated 60 cubic meter rigid enclosure filled with air at 27 degrees C and 1 atm.
Suppose a liquid level ranging from 5.5 to 8.6 m is linearly converted to pneumatic pressure ranging from 3 to 15 psi. What pressure will result from a level of 7.2 m ?
Steam is leaving a pressure cooker whose operating pressure is 30 psia. The amount of liquid inside the pressure cooker is found to decrease by 0.4 gallon in 45 minutes when steady operating conditions are established.
What is the shape of isopycanal surface between 400 and 600m? Estimate the density differance across the thermocline. Is this a warm or a cold core ring?
The actual combustion is to take place with 15% excess air. Determine the composition (vol%) and flowrate (std L /min) of the gases leaving the burner if 95% of the fuel is completely consumed and the product gas contains no CO (all carbon in the
A spring-mass system is found to vibrate with a frequency of 120 cycles per minute in air and 100 cycles per minute in a liquid. Find the spring constant k, the damping constant c, and the damping ratio (zeta) when vibrating in the liquid. Assume
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Consider the freckles pedigree above. Circles are women, squares are men. Dark indicates that person has no freckles, open (white) indicates
Complete the statements to describe characteristics of autosomal dominant and autosomal recessive pedigrees. Choices may be used more than once.
Shao Mae takes medication to relieve depression. The medication increases her neural activity. However, immediately after firing, a neuron
Question: Completion of myelination in the CNS is one possible reason that:
Complete the following statements to describe polygenic inheritance. Some traits, such as skin color, are controlled by several sets of (Click to select)
Explain how bile is formed and the function of the gallbladder. Explain the most common cause of acute pancreatitis. What is the basic treatment?
Secretion of melatonin by the pineal gland will deactivate the ascending portion of this brain structure which, among other things,